Hygloss Products Manila Library Pockets – Self Adhesive Pocket Envelopes – 4.5 x 3.5 Inches, 500 PackINVALUABLE RESOURCE These self adhesive manila library pockets are an indispensable part of any school's supply closet. The library due date pockets measure 4. 5 x 3. 5 inches and come with 500 per pack. LIBRARY MANAGEMENT TOOL The library pockets are great for keeping track of borrowed books, CDs and DVDs. They can also be used inside the classroom for students to keep track of when certain projects or assignments are due. DESIGNED TO LAST The manila